F25B 41/00
Fluid-circulation arrangements
F25B41/00 (Fluid-circulation arrangements) appears on 5,389 US grants and 5,759 published applications in this corpus.
Search patents in F25B- Granted patents
- 5,389
- Published applications
- 5,759
- Assignees
- 1,334
- Inventors
- 9,265
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 18 | 0 |
| 1978 | 33 | 0 |
| 1979 | 22 | 0 |
| 1980 | 30 | 0 |
| 1981 | 30 | 0 |
| 1982 | 26 | 0 |
| 1983 | 18 | 0 |
| 1984 | 32 | 0 |
| 1985 | 30 | 0 |
| 1986 | 50 | 0 |
| 1987 | 49 | 0 |
| 1988 | 36 | 0 |
| 1989 | 52 | 0 |
| 1990 | 48 | 0 |
| 1991 | 67 | 0 |
| 1992 | 60 | 0 |
| 1993 | 62 | 0 |
| 1994 | 54 | 0 |
| 1995 | 46 | 0 |
| 1996 | 38 | 0 |
| 1997 | 62 | 0 |
| 1998 | 82 | 0 |
| 1999 | 89 | 0 |
| 2000 | 92 | 0 |
| 2001 | 120 | 35 |
| 2002 | 129 | 106 |
| 2003 | 120 | 98 |
| 2004 | 96 | 147 |
| 2005 | 106 | 141 |
| 2006 | 90 | 118 |
| 2007 | 71 | 121 |
| 2008 | 55 | 96 |
| 2009 | 38 | 109 |
| 2010 | 64 | 128 |
| 2011 | 55 | 103 |
| 2012 | 66 | 114 |
| 2013 | 47 | 146 |
| 2014 | 68 | 145 |
| 2015 | 88 | 234 |
| 2016 | 133 | 247 |
| 2017 | 198 | 280 |
| 2018 | 220 | 274 |
| 2019 | 289 | 306 |
| 2020 | 267 | 376 |
| 2021 | 259 | 406 |
| 2022 | 351 | 454 |
| 2023 | 295 | 415 |
| 2024 | 405 | 481 |
| 2025 | 370 | 376 |
| 2026 | 233 | 303 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Refrigeration cycle device6 Oct 2026US 12,752,599 B2Denso Corporation
- Vapor compression and absorption refrigeration cycle (VCARC)6 Oct 2026US 12,753,955 B2Effusio, LLC
- Heat source unit6 Oct 2026US 12,753,956 B2Daikin Industries, Ltd.
- Heat pump system and control method thereof6 Oct 2026US 12,753,957 B2Samsung Electronics Co., Ltd.
- Electromotive expansion valve and refrigeration circuit6 Oct 2026US 12,753,958 B2Mahle International GmbH
- Multi-way switching valve device8 Oct 2026US 2026/0309242 A1Mikuni Corporation
- Air conditioning appliances defrost8 Oct 2026US 2026/0309351 A1Haier US Appliance Solutions, Inc.
- Refrigerant unit8 Oct 2026US 2026/0309374 A1Sanden Corporation
- Heat pump8 Oct 2026US 2026/0309378 A1Daikin Europe N.V.
- Heat pump module, plant comprising such heat pump module and method for heating a substance8 Oct 2026US 2026/0309379 A1Snf Group
Most cited
By later US patents
- Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor194US 6,047,557 ACopeland Corporation · 2000
- Economizer control with variable capacity193US 5,095,712 ACarrier Corporation · 1992
- Heat pump motor optimization and sensor fault detection164US 5,630,325 ACopeland Corporation · 1997
- Heat pump motor optimization and sensor fault detection156US 5,440,895 ACopeland Corporation · 1995
- Capacity modulated scroll machine156US 5,741,120 ACopeland Corporation · 1998